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Perilymphatic Fistula
Aka: Perilymphatic Fistula, Hennebert's Sign- Definition
- Communication between inner and middle ear
- Causes
- Direct blow to ear
- Scuba related barotrauma
- Excessive straining on stooling, lifting, sneezing
- Pathophysiology
- Peripheral Cause of Vertigo
- Symptoms
- Vertigo
- Associated with Hearing Loss
- Signs: Hennebert's Sign
- Pressure applied to tragus and external auditory meatus
- Pneumatic Otoscopy may also induce
- Results in Vertigo or Nystagmus when fistula present
- Pressure applied to tragus and external auditory meatus